I guess from the file name that it is a MS flt sim config (cfg) file. When it says what to open it with choose any text program, i.e. notepad, wordpad, word etc. As at the end of the day it is only a text file containing info for flt sim to use certain things. And when opened up will look something like this:
[fltsim.0]
title=Flight One 747-400 Cathay Pacific
sim=F1-747-CP
model=
panel=
sound=
texture=
checklists=
[forcefeedback]
gear_bump_nose_magnitude=6000
gear_bump_nose_direction=18000
gear_bump_nose_duration=250000
gear_bump_left_magnitude=6000
gear_bump_left_direction=35500
gear_bump_left_duration=250000
gear_bump_right_magnitude=6000
gear_bump_right_direction=00500
gear_bump_right_duration=250000
ground_bumps_magnitude1=3250
ground_bumps_angle1=8900
ground_bumps_intercept1=5.0
ground_bumps_slope1=0.48
ground_bumps_magnitude2=750
ground_bumps_angle2=9100
ground_bumps_intercept2=0.075
ground_bumps_slope2=1.0
crash_magnitude1=10000
crash_direction1=01000
crash_magnitude2=10000
crash_direction2=9000
crash_period2=75000
crash_duration2=2500000
Hope that helps <img src="wink.gif" border="0">